Multiple Choice
Which structure in the internal anatomy of the kidney is responsible for collecting urine from the renal pyramids before it passes into the ureter?
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25. The Urinary System
Introduction to the Urinary System
Multiple Choice
A 24-hour urine test is used to determine the ________ of the kidneys.
A
size
B
blood supply
C
location
D
function
Verified step by step guidance1
Understand the purpose of a 24-hour urine test: It is a diagnostic tool used to evaluate how well the kidneys are functioning by measuring substances in the urine over a full day.
Recognize that the kidneys play a vital role in filtering blood, removing waste products, and maintaining fluid and electrolyte balance. A 24-hour urine test helps assess these processes.
Eliminate incorrect options: 'Size' refers to the physical dimensions of the kidneys, which are typically assessed using imaging techniques like ultrasound or CT scans. 'Blood supply' is evaluated using tests like Doppler ultrasound or angiography. 'Location' is determined through imaging studies, not urine tests.
Focus on the correct option: 'Function' is the appropriate answer because the 24-hour urine test measures how effectively the kidneys are performing their filtration and excretion roles.
Conclude that the 24-hour urine test is specifically designed to assess kidney function by analyzing the concentration of various substances, such as creatinine, urea, and electrolytes, in the urine collected over 24 hours.
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